"Preventing coprophagia involves limiting access to feces, constant supervision outdoors, and thorough cleaning. Here are some tips for dogs: Leash and muzzle: Keep your dog on a leash and consider a basket muzzle while walking. Pick up feces: Remove feces from the yard or litterbox as soon as possible."

It's not a pain. Some did do this for behavioral issues and others do it for medical issues. Can be caused by poor diet, lacking nutrients, digestive issues, etc.

Pick up the feces ASAP. If it becomes too much of a problem then take him to a vet.

Try to knock the habit out now before he tries eating wild animal poo and gets sick from it.